May 1940. France is facing a disastrous military situation against the German army. Charles de Gaulle (Lambert Wilson), newly appointed General, joins the Government in Paris while Yvonne (Isabelle Carré), his wife, and their three children stay in the East. Facing the defeatist attitude of Pétain ready to negotiate with Hitler, de Gaulle has one purpose: continue fighting. And along with thousands of French families, Yvonne and the children are soon forced to flee the advancing German troops. Without contact from one another, the doubt arises: will the de Gaulle family be sacrificed for the sake of France?